Grand Caravan V6-181 3.0L SOHC (1989)
2-4 - 20 TO 77
UD - 24 TO 70
5.
Other factors effecting clutch volume values
1.
Incorrect fluid level
2.
High transaxle temperature level
3.
Restricted clutch feed circuit
4.
Restricted solenoid food circuit
5.
Valve body leakage
6.
Leaky lip seals
7.
Leaky seal rings
8.
Case porosity
9.
Circuit leak in pump housing
10.
Circuit leak in reaction shaft support
11.
Damaged accumulator seal ring
12.
Clogged oil filter
13.
Aerated fluid
14.
Faulty oil pump
15.
Insufficient clutch pack clearance
16.
Sticky regulator valve
17.
Failed clutch return spring
NOTE:
The above factors will normally be accompanied by transaxle symptoms not always related to this procedure.
6.
Interpreting clutch volume values
If all clutch volume values are still within the acceptable guidelines found in step 4, the vehicle may be serviced by only replacing the A-604
controller with the current released. Road test the vehicle using the instructions found in step # 8.
If any clutch volume value exceeds the upper range limit, a worn clutch pack is likely.
Refer to Technical Service Bulletin 21-08-89
7.
Proper road test procedure
A.
Use the DRBII to clear any fault codes before road testing.
B.
Leaving the DRBII connected, road test the vehicle using the guidelines found in step # 3, then continue to road test with an emphasis on
the 3-4 shift.
C.
If code 48 occurs early during the road test, erase the code and continue the road test. (A false code 48 can sometimes set during the
shift learning process.)
D.
If transaxle performance is judged to be acceptable, return the vehicle to the owner
E.
If Code 46 continues to repeat, verify proper turbine and output sensor connection. Repair or replace transmission per current policy if
problem persists.
